compare it to the last job recovery, obama versus bush. we're creating jobs faster than we were after the 2001 recession. i don't think we're seeing robot-caused inflated unemployment right now. what there is room to worry about, though, is the idea that are the machines getting smarter, faster than we're getting smarter? >> i think they are. i understand your point and in ideal economy, the displaced worker will now work for the robot or ipad company selling or -- >> that's not always going to happen for many reasons. let's say this new ipad technology puts 50,000 waiters and wait ress out of work. where do they go in this economy? >> theet reticily they could get jobs at other personal service industry. they could become therapists, butlers. all of these people with middle class jobs who will be losing their jobs. they're going to try to take those job. if you have low skills, you'll be in bad shape. what sdaisderek said, 40 % farm. another worker in 1900 who never got new jobs. horses. replaced by cars. our skills are like the farmers o